Zurich to Milan Ticket Printing

I purchased a ticket on TrenItalia from Zurich to Milan.

I received the confirmation, reciept and PNR. This confirmation states that I must print the ticket at a kiosk before boarding. My understanding, however, is that there is no such TrenItalia ticket in Zurich (given that it is in Switzerland). Additionally, we are arriving directly into Zurich from New York so there is no opportunity to print the tickets in Italy.